Elevating-bolt



No Model.) z sheets-sneen 1.

F. PRINZ.

, ELBVATING BOLT. l

No. 374,754. Patented Dec. 13, 1887.

(No Model.) `2 sheets-sheet F. PRINZ.

ELBVATING BOLT.

No. 374,754. Patnted D'e0.-13, 1887-.

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UNITED STATES PATENT OFFICE.

FAUSTINPRINZ, F MILWAUKEE, WISCONSIN.

1 ELEVATINGt-BOLT.

SPECIFICATION forming part of Letters Patent No. 374,754, dated December13, 1887.

Application filed September 30, 1887. Serial No. 251,132. (No model.) A

.To @ZZ whom/it may concern.'

Be it known that l, FAUsTiN PRINZ, a subA 4ject of the Emperor ofGermany, residing at yMilwaukee, in the county of Milwaukee and State ofVisconsin, haveiuvented certain new 4and useful Improvements inElevating-Bolts; x I do declare the following to be a full,

clear, and exact description of the invention, such as will enableothers skilled in the art to f which it appertains to make and use thesame,

` bolts adapted for grading wheat or any other material that can begraded thereby, and has vfor its object to effect a more thoroughgrading or separation than heretofore; and to that end it consists inthe construction and combination of parts hereinafter particularlydescribed, and then specically defined by the claims.

Figure l of the drawings is a plan view of the bolt; Fig. 2, avertioallongitudinal section through Fig. l; Fig. 3, a cross-section throughFig. l; Fig. 4, a longitudinal section through' the bolt, showing thedirecting-board without the shaker; Fig. `5, a cross-section through thebolt constructed according to Fig. 4; F1'g.'6, a plan of adirecting-board, partly broken away, showing two sets of wings, Q; Fig.7, a crosssectiou view of part of the bolt, showing modilied forms ofdirecting-board and screen; Fig. 8, a view of one ofthe rings that bindthe bolt in cross-section; Fig. 9, a cross-section through part of thegrading-cylinder, showing manner of forming joint. y

In the drawings, the letter A designates the casing, with conveyer B,its trough C, and inclines D ,beneath the bolt, all of which are of theordinary construction, and therefore need not be more particularlydescribed.

Within the casing is the bolt E, composed of heads F, having bearings Gjournaled in the boxing or rings a in the ends of the casing, and havinga grading-surface, H, of wire-gauze, bolting-cloth, or other suitablematerial in use for the purpose. rIhe preferred material, is perforatedmetal, fitting at its ends ou flanges b on the inner face of the headsF, and secured thereto by bands I, having angle-irons o at their ends,through which bolts d pass to clamp the bands to the flanges. Thesebands may be used at as many other points as desired to bind and stiEenthe bolt. To one edge of the perforated grading surface, on oppositefaces thereof', there are secured by rivets or other means metal platese e', forming a fork, in or between which tits the other edge of thegrading-surface, so that when bolts or rivets are passed through theplates and grading-surface a good joint is made.` The heads of the boltare formed on their peripheries with cogs f,

'with which will mesh the gears J on the shaft tional contact. This isnot illustrated, because not claimed.

Within the bolt are a series of ribs or elel vators, N, extendinglongitudinally of the bolt, and secured by bolts f or other means tolugs g on the inside of heads F. These elevators are concave,(preferablyof ,the form show n,) and are set so that a space will beleftbctwcen them and the inner face of the grading-surface. By thisconstruction a portion of the material is between the carriers andgrading surface undisturbed by the carriers, which portion iscontinuously agitating or rolling, whereby the larger particles Work orare brought to the top or surface of the mass and carried upward by theelevators, while the lighter or finer particles are brought to thesurface of the screen, and being freed from so much of the largerparticles are free to pass through the screen. The coarser or largerparticles lifted by the elevator to the upper portion of the bolt,instead of being permitted to fall directly to the bottom of the bolt,are intercepted in their downward course, for instance, as shown inFigs. 4. and 5, by a board, O, which directs the material to theopposite side of the bolt and against the surface thereof. The advantageof receiving the material from IOO the ascending side of the bolt anddirecting it against the surface of the bolt on the descending side isthat the larger particles carried away from the smaller particles by theelevators move faster than the bolt when they leave the board and comein contact with the surface of the bolt on the descending side, with theresult of imparting a similar rolling motion as on the ascending side,and with like results. Both sides of the bolt are thus brought into playin the treatment of the material. This directing board may be supported,as clearly illustrated in Figs. 5 and 7, by brackets h, connected byset-screws t' to a shaft, P, passing centrally through the bolt andsupported by suitable standards outside of the casing, as shown in Fig.4. By loosening the set-screws the brackets can be turned on the shaftso as to change the inclination of the board and discharge the materialhigher or lower` against the side or the grading-surface, as theexigencies of the case may require, and partly to control the speed withwhich the material shall pass from the board.

, The board has pivoted to it a series of bars or wings, Q, to which isconnected a rod, R,

y extending to the outside of the bolt, and by means of which theinclination of the wings may be varied to regulate the speed with whichthe material will be moved to the end of the bolt.

Instead of a single rod, a series of rods may be used, a portion of'thewings or bars being attached to each rod, so that some of the bars maybe placed at a greater angle than the others. An additional rod is shownin Fig. 6.

I prefer to use in connection with the bolt a screen, which I designatea. shaken77 It is shown in Figs. 2, 3, and 7 and consists of aperforated metal screen, S, secured at one end to the upper portion ofthe inclined board O, and having at its lower end a trough, j, madeintegral, under the construction shown in Fig.

-3,with the screen, thereby stilfcning the same,

or made separate and soldered or otherwise secured thereto. It standsabove the surface of the board and receives from the carriers thematerial being treated, the smaller particles of which pass through thescreen and down onto the directing-board,while the larger'particles passinto the trough and out therefrom at the tail end of the bolt.

To insure the falling of the material onto the upper end of the screenor on the board 0,

LII

aboard or shield, T, is supported, preferably in an inclined position,above the screen or board at its upper end, either by straps k,extending from the board, and to the upper end of i which the shield isconnected,as shown in Figs.

4,5, and 7 ,or by an upright, l,extending up from the directingboard andfrom which the shield is suspended, as shown in Fig. 3. The materialthat falls onto the shield is checked by it and slides down the same andpasses under it and over the screen, and thus more of the material isscreened than otherwise would be.

It is obvious that the lscreen S may have a wooden frame around itsedges, which, however, is not shown, as a frame is well known and notclaimed; and, if desired, a. flange, m, may be placed as shown in Fig.7, secured to any suitable part of the screen or inclined board andextending lengthwise thereof, to prevent the material from backing overthe inclined directing-board.

When the shaker is used,I prefer to support the inclined directing-boardat opposite ends of the bolt by bracketsU, as shown in Figs. 1, 2, and3, instead of bya shaft extending through the bolt, as shown in Figs. 4,5, and 7. These brackets have journal-pins fn, at their ends, whichextend through openings in the springplates V, secured' at their lowerends by bolts 0, or otherwise, to some part of the framework. Thesespring-plates form the standards or supports for the directing-board,and permit a vibrating movement to be imparted to the shaker. Thesevibrations may beimparted by any well-known means suitable for thepurpose. As a suitable means for the purpose I have illustrated a lever,W, extending horizontally from aspring or elastic connection with one ofthe uprights of the frame of the machine forward into contact with oneof the spring or elastic plates V, and thence forward to a point wherethe cain-surface or ratchetteeth of the wheel M in the rotation of theshaft K will strike against its side and thus move the shaker in thedirection of the length of the bolt. The rebound of the spring-platedraws the shaker back, and thus a longitudinal reciprocating movement isimparted to the shaker. This causes the material to move toward the tailend of the bolt. The shaker is given some inclination to the tail end ofthe bolt, and the latter may have some inclination that way. t

The directing-board and shaker may be adjusted to different angles by auarm, Y, connected rigidly to the journal n of one of the brackets U, andheld to the spring-plate V by a thumb-screw and nut, p. The plate V isformed with a series of holes, so that by removing the screw and turningthe board by arm Y, and then passing the screw through the proper hole,the board will be adjusted and held to the desired angle.

The gradingsurface may be braced or stift" ened from within the bolt bya ring, Z, supported by arms q, extending from the ribs or elevators N.One of the clamping-rings, I, will be passed around the grading-surfaceat this point, so as to hold it close to the inside rlng.

Abrush may be applied to the outside of the grading-surface, as iscommon in gradingcylinders, and for the same purpose of clearing thesurface.

I have described what I consider to be the best means for accomplishingthe objects in IOO I lay no claim herein, broadly,.to a Ydirecting-boardlocated within the cylinder and inclined from the ascending to thedescending side of the cylindel, nor to the same made adjustable, nor tothe same combined with elevators supported in proximity to thegradingsurface, nor, broadly, to asecondary screen located within thecylinder and extending from the ascending toward the descending sidethereof, as the same forms the subject of another application liled byme.

Having described my invention and set forth its merits, what I claim isl. The combination, with the cylindrical grading-surface, of a vibratingscreen provided at its lower end with a troughfleading to the tail endof said cylinder, substantially as described.

2. The combination, v withthe cylindrical grading-surface and elevators,of a directingboard and a secondary screen located over the board toreceive material from the elevators, said secondary screen anddirecting-board being supported within the cylindrical gradingsurface,substantially as described.

3. The combination, with the cylindrical grading-surface and elevators,of a directingboard, a secondary screen over the board to receivematerial from the elevators, and a trough to the secondary screen, saidscreen and directing-board being supported with the cylindricalgrading-surface, substantially as described.

4L. The combination, with the grading-surface. and elevators, of adirecting-board to receive material raised by the elevators and a shieldlocated above the board adjacent to its upper end and inclinedsubstantially as described, substantially as and for the purposes setforth.

5. The combination, with the grading-surface and elevators, of asecondary screen to receive material from the elevators and ashield todirect said material onto the secondaryscreen, substantially asdescribed.

6. rIhe combination, with the grading-surface and elevators, of thevi-brating directingboard and secondary screen, the latter located overthe former, substantially as described.

7. The combination, with the grading-surface and. elevators, of theinclined directingboard, the spring-.supports therefor, and a` knockerfor moving said supports to vibrate the board, substantially asdescribed.

8. The combination, with the grading-surface and elevators, of thesecondary screen, the spring-supports therefor, a lever bearing againstone of saidsupports, and a knocker for moving said lever, substantiallyas described.

9. The combination, with the grading-surface and elevators, of thescreen, the directingboard connected therewith, located below it andprovided with journals, spring-supports in which said journals havetheir bearing, an arm connected with one ofsaid journals, and means forholding said arm at various points on one of said supports,substantially as described.

In testimony whereof I afx my signature in presence of two witnesses.

FAUSTIN PRINZ. Witnesses:

J osHUA STARK, GEo. P. MILLER.

Correction in Letters Patent No. 374,755I

upon the application of Faustin Prinz,

lters Patent It is hereby certified that in Letters Patent No. 374,754,granted December 13, l of Milwaukee, Wisconsin, for an improve] inElevating Bolts, au error appears in the printed specication requiringcorreo as follows: In line 31, page 3, the Word with should read withinand that the shonld be read with this correction therein that the samemay confoi the record ofthe oase in the Patent Office.

Signed, eountersigned, and sealed this 20th day of December, A. D. 1887.

D. L. HAVVKINS,

Acting Secretary of the Im [SEAL] Oouutersigned:

BENTON J. HALL,

Commissioner' of Patents.

